Belt bag backpack for cases when things are too small for a backpack, but too many to stuff everything in your pockets. It is convenient to ride a bike without a One-Shoulder Backpack. Plenty of pockets for storing travel essentials.
If you need an original backpack that you can use as an information board, orderlight up a backpack (APP Control Light Backpacks). Screen resolution 64 * 64 full-color dot matrix screen. Draw animations or choose a picture from the constantly growing catalog, and display it directly on your backpack.